Leaking Oil

[pwpanas]

Originally Posted by seanheather

i have a 94 Toyota supra 2jz gte 3.0 and its leaking oil from the top of motor - how much will it cost to fix and is it a easy fix

Overall, the fix is quite easy, and it is relatively inexpensive.

The least expensive part is replacing the cam cover gaskets - you'll need to use Toyota's form-in-place gasket (aka 'FIPG') to seal at the front corners where the gasket loops over the bearing. Most likely you'll need to replace the PCV hoses too.

Although some regard it as optional, I'd recommend you replace all of the metal+rubber washers on all the cam cover bolts. The rubber inside these washers often get old and brittle too, and won't properly seal unless they are replaced. Although each one of these metal+rubber washers is inexpensive, there are quite a few of them...so the price does add up to replace them all. If you would prefer to avoid this expenditure, a thin layer of FIPG around each bolt, at the corner where it meets the rubber washer *may* work to keep the oil sealed in, instead of all new washers...but this alternative process also may make the next valve cover removal quite difficult. You could also skip this and use the old washers and hope for the best.

Lastly, you may notice that your wiring harness' coil pack connectors are brittle when you remove them. Although it has nothing to do with the oil leak, you may need to replace one or more of these as well...which can also be done quite easily. Please let us know if you need the Toyota part number for this.

Please let us know if you have any questions.